Inside the lid it has DBGM and a diamond shape undeneath with the letters inside it.
On the bottom it says Made in Germany and then a stamp M/R then the numbers 2350 and then 10 underneath that.

Leah,

This was made by Marzi & Remy and can be seen in their catalog in The Beer Stein Library. The DBGM indicates it was made post-WWII. The price ranges shown are for stein auctions. About 1/3 of that price goes to the auction house. Sales on ebay generally go in the lower range or less. Buyer pays for shipping, about $12-$15. These are considered souvenir-type steins and are not highly collectible.

Thanks, I was just wondering about it. She use to travel a lot so it does not surprise me it is a souvenir.