Kane Continuity Script

[continuityscript]

I wonder if anyone can help with the following:
'CUTTING CONTINUITY / on / "CITIZEN KANE"/ ... / RUNNING TIME - 119 MINUTES / ... PRINTED IN THE U.S.A.' [title on upper cover]. [Undated, but printed before October 1944 (see below)]. 71pages (sheet size: 14 x 8 1/2 inches). Stapled along upper margins within original blue paper wrappers (watermarked 'HAMMERMILL / MSS'), with title and some technical details printed on upper cover, with '257' hand-written in blue pencil on upper cover. Provenance: probably Robert 'Bob' Asher (1915-1979, British Film Director, handwritten time-sheet/diary of Asher's day at Elstree Studios dated 'Thursday Oct 5/44' - the writer's identity is arrived at be a process of elimination from clues within the 'time-sheet'); UK auction, October 2011.

A close comparison of the first few pages does show some differences to the 'RKO Continuity Script' as published in 'The Citizen Kane Book' - most significantly: at the beginning (scene 17), the glass globe in Kane's hand contains a 'snow-covered house with snowmen surrounding it' in the published version, but in my version contains a 'snow-covered sled'.

Where I need help: what is this? The printing method looks to be halfway between a typescript and proper letterpress printing: how was this produced? Any idea how many of these were printed? No mention of 'RKO' in the title on the cover - was this a 'bootleg' or a tool to be used by someone working on the movie? Any other relevant information gratefully received!