Need help Identifying this silver plate

[petedaddy]

Thanks in advance for any help! I found this interesting silver plate but haven't been able to identify the marks

The front is labeled New England Fair Horse Show and the back has some marks along with 77/11

https://imgur.com/WbupWvL

https://imgur.com/4YGdOQN

https://imgur.com/OMIJcyE

https://imgur.com/hIsy8pC

Thanks for any help :)

[Traintime]

Welcome to the site...please try to embed your images as few will look at links. (Help is available on the site.) Meanwhile, see this EGW mark on the left side of page (2nd group, lower down)....http://www.925-1000.com/silverplate_W2.html