I order a schematic for poker face (1953) from Steve and it was a small size. I had also ordered a williams golden bells (1959) at the same time and it was a large size.

Maybe try buying a schematic from Marco Specialties. The ones they have may be the larger ones.

I used to work in document management. Drawings usually have a title block in the bottom right corner that may have the original size listed. ANSI and ARCH sizes are by letter usually. ANSI D is 22x34 and ARCH D is 24x36. Some of the old ladder drawings I have seen for pinball are not a standard size besides the paper width... ie 11" wide by however long.

Is there a title block with any clues to paper size?

When I was at the document management place I could scan anything into a full size high res PDF. That had some great roll fed scanners. Some did better on dirty old prints. Some for color, etc.. I wish i could have archived more stuff while I was there, but just didn't have access to originals to scan. I did a few books from games I owned. I am pretty sure they would still let me walk in there and use the scanners for free, but I probably can't push it.

A 11x17 print, if scanned at 300dpi or better pure black can fit to page a 24x36 and look good enough. I used to have the Bally and WMS schematics often used pasted on my walls in the shop. I'd just roll the chair over if I needed to look at something =D.

Oce gear for the most part. Had a cannon and some other brand scanner.

The Oce stuff would run forever. They had one with the sq ft counter rolled over twice.
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Hearts & Spades was on my bucket list ever since I played a mint one at “Mopars” in upstate NY 3 years ago. Fell in love with the game play and the unique backbox. I picked one up in trade this Spring . I’m redoing the cabinet, got a Webb glass, and I sent the PF to a restorer in TX.

My H&S schematic is taped inside my back door I’ll have to check out the size. I did have a reprinted PBR schematic for the replay version , Spin a Card, it was the smaller sized print.

Don't remember where, but I've read somewhere there were over 1000 units of this one. Definitely more than 100. I have one in my collection and really like it. I also prefer it over Spin a Card. I also have that smaller print size schematic.

Don’t em schematics size have to do with the amount of electrical circuits in the machine? That’s why Bally em schematics are so long.

Just confirmed small size factory schematic inside of backbox door, small print too