Ferslew plate II, 4 rbs. chocolate-brown in vertical pair, tied by target cancel to lettersheet from "KJØBENHAVN 19 6 1851" to Apenrade, endorsed "franco" in the lower left, contrary to regulations, thus the letter was regarded as unpaid and charged with addtional "4" rbs. (12 rbs double rate unpaid letter fee minus 8 rbs. value of postage stamps). Credit given for adhesives was only given for a short period from April 1st to July 24th 1851....

Ferslew 4 rbs. chocolate-brown, plate II, just touched in small place, otherwise good to large margins, tied by target cancel to lettersheet from "ODENSE 23 12 1851" to Kierteminde, endorsed "betalt" (paid) in lower left contrary to regulations, corrected by postal clerk to "ubetalt" (unpaid) and charged with "6" rbs. to be paid by the recipient. A fine and scarce entire; certificate Moeller BPP (2001)

Ferslew 4 rbs. brown, good margins, tied by target cancel to entire letter (invoice for sweets) from "VEILE 6 12 1851" to Christiansfeld, endorsed "Franco" in lower left, cancelled by pen strokes with adjacent red manuscript "ikke betalt (not paid) (signature of Brinch the postal clerk)", but not charged. A very fine and rare letter treated contrary to the postal regulations by the post office

Ferslew 4 rbs., plate II, pos. 39, large margins, used with central target cancel on lettersheet from "FLENSBURG 28/2 1852" to the island of Fanø, endorsed "frco" in the lower left corner contrary to the postal regulations, therefore charged with "6" rbs. in red crayon with adjacent violet manuscript notations "Kassebref" and "ubetalt (signature)". A very fine and scarce entire. Certificate Moeller BPP (2002)

Thiele 4 rbs. chocolate-brown, good to large margins, tied by target cancel to entire letter from "KJØBENHAVN 2/10 1852" to Saxkjöbing. Since the stamp was placed in the lower left corner of the letter against the regulations it was marked "Ubetalt Kassebrev" and charged "6" rbs. in red crayon to be paid by the recipient. Fine and scarce

1854/57, 2 sk. blue and 1863, perforated issue 4 sk. brown, tied by numeral "52" to lettersheet with adjacent "PRAESTØE 29 3" (1864) to Rönnede with transit and arrival marks. The cover was originally franked with 4 sk., endorsed "bet:" by the sender and presented at the post office, which decided the letter had to be treated as unpaid with a fee of 6 sk., an additional 2 sk. stamp was added and behind the "bet" a "6" was added. A very fine...

1858, 4 sk. orange-brown with good to large margins, tied by numeral "66" to lettersheet from "SCHLESWIG 25 3 1860" to Flensburg, endorsed "frei" against regulations, endorsed "Postbox letter - not paid (signature). The letter was treated as unpaid, precharged with 6 skilling from which the value of the stamp was reduced, so charged "2" skilling in red crayon. Credit given for the applied postage stamps was only between April 1-July 24, 1851...

1864/70, 3 sk. violet with numeral "44" used on local lettersheet with adjacent "NAESTVED 16 6" endorsed "fr" in the lower left contrary to the postal regulations, so that the unpaid letter rate of 3 sk. instead of 2 sk. had to be paid. An attractive and exceedingly rare single franking; one of 3 examples recorded

1864/70, 3 sk. lilac in horizontal pair and 8 sk. yellow-brown, tied by numeral "75" to registered lettersheet from "VARDE 23/5" to Skjern, endorsed in lower left "fr". Since cash payment was not longer accepted from April 1, 1868 the letter was treated as unpaid and franked with 6 sk. unpaid letter rate + 8 sk. registration fee. Vertical cover crease not affecting the stamps, otherwise fine and rare. Certificate Nielsen (2005)

Thiele 4 rbs. reddish-brown, 1st printing, plate I, pos. 99, used with numeral "20" on lettersheet with adjacent "KJØBENHAVN JRBPST EXP. 25/4 1853" to Frederiksborg with manuscript notation "found in the mail box with a previously used stamp" and charged "6" skilling in red crayon prepaid by the recipient. A very fine and rare item of postal fraud; the only recorded letter of this period franked with a previously used 4 rbs.
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1854/57, 4 sk. orange-brown with large margins, tied by clear strike of numeral "87" to lettersheet, previously postmarked "LYGUMKLOSTER 10/11 1857" (the stamp slightly applied above the postmark) to Copenhagen. An extremely fine letter which shows a postal fraud committed by a postal clerk. The letter was brought into the post office where the clerk received 6 skilling in cash; he postmarked the letter, but did not endorse it with "franco"...

1864/70, 4 sk. vermilion, a previously used copy, fixed with wafer seal and with unclear cancellation to entire letter with adjacent cds. "SVENDBORG 18 12" (1865) from Troense to Vemmetofte near Rønnede; interesting and very unusual fraud on the Post Office.