I recently acquired an old Nishiski from our beachouse. I stupidly did not take any pictures before I had the frame powdercoated. However, the bike was originally a cobalt blue in color with a yellow "Nishiki" sticker on the bottom frame tube and "5 Speed" in yellow stickering on the top tube. It was indeed a 5 spd with 27" wheels and tires, a cottered crankset. The stem says Giant on the bottom, it is quilled and has no drop. The bars were a sort of cruiser or riser bar and the shifter was on the right grip; kind of like a clicker style one you push with your thumb. The bike was full-fendered and they were color matched. I am very curious to see what model and so on it is.
Thanks for the help,