Nice Air-cooled cylinder from a upright Fuller & Johnson pump engine. No breaks, cracks, or repairs that I can see. The head mounting studs are spaced 3 1/4 apart from each other on centers. The 4 holes that hole the cylinder to the block are spaced 3 7/8 apart from each other. Nice Oiler and exhaust threads. The cylinder should shine up nicely with a light hone job. Has some very light pitting towards the upper part of the cylinder on one side. The cylinder walls in one area does have some wrist pin “scratches” I have seen far worst Grooves then what this cylinder has. A finger nail barely catches/snags when scraping against the “scratched” area. Please see all pictures for the absolute best description. This item is old and used, it’s not new. I believe with some minor work this cylinder would work just fine.