While working a transfer job at UPRR West Oakland yard, I noticed a cut of passenger cars adjacent to the RIP track facility. Three former California Zephyr cars(Silver Lariat, Silver Solarium,Silver Rapids) were present along with a baggage car; "Silver Peak." This baggage car looked very similar to the original CZ baggage cars with a couple exceptions; a vestibule at one end of the car, and the length of the car seemed to be the same length as the CZ cars (CZ baggage cars were shorter)to which it was coupled to. I didn't have time for a closer look, however the "baggage" car did appear to be Budd built. I was wondering if anyone knows the original identity of the "Silver Peak", and has someone in fact altered this car to make it appear to be an original CZ baggage car? And just for clarification (that means you "Part Time"), I'm not a "nuts, bolts and rivets" type foamer (not that there's anything wrong with that), just an old fart rail who grew up with the original CZ. Thanks for any information you can provide.