Interestingly the spoon wasn't used to "dip" the cream out of the bottle. The cream would be in the bulb area of the cream top milk bottle. The spoon would be put into the bottle to create a seal between the cream and milk. Holding the spoon in place with your finger you would pour out the cream leaving the milk in the bottle. I can imagine this process would occasionally make a mess.
I believe the size of the cream top part of the bottles were pretty standard. The milk companies usually provided a spoon for use. Sometimes these might have the advertising of the dairy on the spoon. Advertising cream spoons are tough to find. I believe the one in the photo is a generic cream top spoon.
I does make a seal if bent right. The handle is for this bottle maybe too long. Bend the handle to rest on the lip of the bottle. I need to fine tune it more I figure.
