How can I tell what kind of ink ribbon I need for an old typwriter?

Question

The serial number is x-1453181 its a royal typwriter 1920's- 1930's. Please help!

Answer 1

If you can take it out and take it with you to an office supply store I think they could help you there.

Answer 2

Almost all manual typewriters use half-inch-wide ribbons, and these can still be found. (If you have an odd-sized ribbon, experiment with ribbons for computer printers, time clocks, cash registers, and other machines.) Most typewriters can use dual-color ribbons (red and black), so look for one of those -- they look nice and can be useful. Good ribbons are still available from the sources listed below. Your local office supply store may also have ribbons for manual typewriters, and it may have ribbons intended for printing calculators which will work just as well. Ribbon spools (the reels) are slightly more challenging, if your typewriter is missing them. Ribbons are usually sold on plastic spools, and you may have to experiment with several kinds before you find one that fits your particular machine.

See link below for exact places that sell the ribbon that you need.