elnan - yes, it's the hinged door. i wanted to get just the one on the table since it is cheaper but when i found out about the hinged door issue i decided to get the other one. they are both reasonably priced but the price of the cheaper 503 in my mind will justify my reasoning for getting the more expensive one. also when i was there getting the expensive 503, she threw in 2 rolls of 12"x48" veneer wood (cost $38 each) that i can use for rehabbing my singer cabinets. the cheaper 503 has all these accessories included: