I don't know the actual year this was produced, but it looks like 50's. Intended for a smaller motor, likely under 10 HP. Top edge of transom plate is 33.5 high.
No significant damage or defect to the cast aluminum transom plate - paint is mostly gone, but there are no cracks, gouges or any restoration concerns beyond sand and paint. Mercury logo casting is substantial and undamaged, held on by original rivets. Square head leg lock screws are good.The leg hoops are original, and have general paint loss - there is a heavy coat of original silvery paint that doesn't show well in the pictures. There are small rust throughs at three points of floor contact (fourth looks OK) which do not affect use, not visible when in use.
The item "50's Antique Mercury Small Outboard Stand Restore or Use Fast Free Shipping" is in sale since Thursday, June 14, 2018. This item is in the category "eBay Motors\Parts & Accessories\Boat Parts\Outboard Engines & Components\Other". The seller is "4cvgordini" and is located in Denver, Colorado. This item can be shipped to United States, Canada.