Having Trouble Finding This "Hallmark"

[beehiveking]

back of stem of handle near the bowl

Hi,

I was looking at an old Souvenir Spoon with the title mentioning "Sterling".  The "seller" didn't have much info included with "The Listing" and I asked for Length, weight and Hallmark.  

She said the spoon is "Spoon is 6" long 29g weight makers mark is a 0 over an H.  

She is selling 3 spoons celebrating the 1904 St. Louis World's Fair. 

The 2nd spoon has a picture of the back stem that is unreadable and blurry. The 3rd spoon she is selling  is listed as "pearl silver" (flatware that was actually nickel silver, that is made of copper, zinc and nickel with no silver content).  

I don't see the word "Sterling" anywhere in her blurry pictures.   I have a good picture of the hallmark on this one, but I can't find it in any of the directories online.

Any help would be appreciated.

BeeHiveKing

I wonder if it could be silverplate.  

[artemisiana]

Hirsch & Oppenheimer https://www.sterlingflatwarefashions.com/Silversmiths/SSH8.html

[beehiveking]

You're a "genius' ! I first checked by Hallmarks that used "Initials" = (the "O" and then the "H") and then by silver cos. that began w/ an "O" and then an "H". Some hiow I was overlooking the company. Sounds like they made Sterling Silver souvenir spoons (don't have to worry about "plated)
Thanks artemisiana
BeeHiveKing