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Hi! I hope this is an all right place to ask.I came across this and am trying to find more information on it. I believe it's from the 50's? That's all I was able to find out. I Googled the numbers on it and tried tons of different search terms, but I...

It's about 21 1/2"long and 14 1/2"tall. There are no markings anywhere that I can find. I've done a lot of googling and brought it to a couple antique stores, but I'm having trouble identifying a style/possibly century. Any help would be much appreci...