That is a cutie! Glad she was all cleaned up for you. 185 takes CLASS 66 bobbins.
http://www.sewingpartsonline.com/bob...2222-10pk.aspx
(not affiliated with them...never purchased from them...only posted because it lists all the models the Class 66 bobbins can be used on)

I see that Joann's sells the plastic bobbins - I would stay with metal ones - even if you have to order them online or through ebay.

I see people selling machines craigslist and they don't even wipe the dust and dirt off them. . . and then they want LOTS of money for them. Those are the ones I pass on .

Had to play with the tension a bit and give her a good oiling.....but she sews a nice straight stitch, and runs like a champ :thumbup:

The 66's at Walmart and Joann's might work but if you get them there, keep your receipt as you might just be taking them back. I could wind a bobbin on my 1928 Singer 99 with teh Singer brand 66's at Walmart, but they didn't go around in my bobbin case smoothly. They were too tight a fit to work. I ended up ordering some from Sew Classis, and was very pleased with them as they are of a good quality.
Have fun with your machine. It's cute in the green!
Janis

Those bobbins from WM make cool ear rings when they fall apart...