I've never seen a single-coated Fuji A lens in any focal length, though they did exist. The enormous and very rare 600 and 1200mm ones were only made single-coated. The no.0 Copal shutter was standard to the EBC 240. Any Seiko shutter version would be quite old, and a no.1 Copal, a re-mount. Outside lettering on the barrel of Fuji lenses indicates later lenses with multicoatings. The 240 is extremely sharp for any any 4X5 or roll film back purposes. With 8X10, you need to be well stopped-down, which is rather routine in that format, and might discover a tiny bit of detail loss toward the corners in a really big print, like 30X40 inches in scale, that is, if you are really nose-up to the print wearing reading glasses. So it's a very versatile lens, and one of the very best for close-up shots. I use it as my preferred longish-normal on 4X5, and as a moderate wide-angle lens on 8X10. For 120 roll film backs, it's actually sharper and better corrected than nearly all dedicated MF lenses of equivalent focal length.
