Good afternoon from Vancouver Washington

I have been trying to find ex Algoma central/SP rail cars. having extreme struggles finding info about them

if anyone knows anything about the location and or disposition of the following rail cars, pls reply.

SP #2496-#2497(AC #450-#451)
SP #2471-#2472(AC #460-#461, later AC #10672-#10673)
SP #?-#? chair car(AC #456-#457)
SP #2454-#2453(AC #454-#455, later AC #10634-#10635)

if anyone has info on these ex SP articulated chair cars, PLS tell me what you know about them

Thank you
have a great rest of your day

152696

here is a link to a series of posts from 2016 that mentions the cars plus other SP cars

viewtopic.php?f=1&t=39225&p=246530&hilit=algoma+central#p246530