Please help with family dining pieces

I have two simple dining pieces: a quarter sawn oak glass china cabinet and a quarter sawn buffet cabinet with mirror. They were purchased by my late husbands grandfather. We think it was 1890s-1900 era, shortly after arriving in the United States. On the back of the buffet is handwritten WOH 677. Any idea if the WOH are the initials of the furniture maker/brand?

 

Hello and welcome.
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This might help.
https://www.antiquers.com/threads/making-a-post-and-uploading-pictures.16038/