German States, Bavaria – 1849 Issue 1k, group of 107 items comprising 33 glass support clichés, of which four are negative, one with painted surround to concentrate the light on the area of the stamp and to not diffuse it laterally (cracked top not affecting stamp design) with notations and dated 4/45, the three other negative glass clichés: one in brown dated 12/49, one in turquoise-green dated the same (an unusual colour as Sperati preferred the red/vermilion or black shades), one in red both with the surround painted out, 23 other glass support clichés, two in beige with painted out surrounds with notations, one labelled « Type A », one is backed with an additional piece of glass, the other with additional glass front and back, in various shades of black, grey, red, brown and pale-green (this rarely utilised by Sperati), also five glass support clichés for various pmks (Bayreuth, Marktsteft, Kaufbeurn, Obernzell, one of which being a negative cliché, and numbers 145, 152, 313, 20, 217, 363), eleven clichés on celluloid for the 1k of which two are negative, one retouched and partially painted around the surround with C.14 in the left corners and 7/10 in the right corners marked as « A », another almost identical marked « B », one dated 3/35 with the notation 24° temperature 6% of chemical substance by 5 minutes exposure, two more dates for 2/45 and 12/49, four in vermilion with one labelled « VI », one dated 3/41 which is also marked « X X », another marked « a) » dated 2/45, one in black dated 12/49 and a further seven glass clichés are of the pmks, four reproductions of the 1k in black with postmarks of which two are on piece and one of the singles is hand signed, also a stock page with 18 trial essays on paper most in black although two single examples on a vertical piece being in vermilion; a unique and remarkable assembly including four negative glass clichés, together with a larger than unusual sample of glass support clichés never seen before; the B.P.A. only possesses dated clichés for cancellations and probably few clichés stamps, with this lot providing additional dates for those clichés and unknown dates for teh clichés of the designs; only one backlit cliché found in the « Ultimate » collection and the Postal Museum in Paris possessing just six clichés or matrices for all German States.