Rose bowls? Pink and yellow ... where from?

These crimped/ruffled rim (what's the right term?) - are 4" wide and just over 3" tall. The yellow has ridged optic. They both have rough pontil scars - the yellow a little more than the pink. Yellow weighs 9 1/2 ounces. Pinky weighs 8 ounces. Snactched them up at the thrift because they looked old...can anyone enlighten me on how old - and perhaps where they are from? Many thanks!

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I usually list these for sale as Italian reproductions from the 1960's - 1970's. According to my rose bowl book (Billings), you can tell the Italian examples because the glass is thicker (originals are much more thin walled), the feel of the glass (it should be grittier on the originals probably because of a change in manufacturing techniques), and the pontils (the pontils on the Italian pieces are ground down just enough so the rose bowl sits level). Hope this helps.
Don

 

Thank you Don - appreciate the info!