Metra has three types of gallery car, only one of which is in TS. This version would be the Nippon Sharyo gallery car, which Metra took delivery of in the mid-90s. The other two were built for the pre-Metra/RTA operators in the Chicago area by Pullman-Standard and Budd in the 1960s. The Budd cars look somewhat similar to the Nippon Sharyo ones on the outside, but they have shorter windows and a different body profile among other differences. The Pullman-Standard ones are smooth sided and share a similar window profile to the Budd cars. The car in the rear here is a Nippon Sharyo while the one in the front is a Budd if you want to compare:

And here's all three types in a train
The Wolves Train by
Robby Gragg, on Flickr
Front to back - Nippon Sharyo, Nippon Sharyo, Budd, Nippon Sharyo, Pullman-Standard, Nippon Sharyo, Nippon Sharyo.