Ok, so "inquiring minds wanted to know...." On another site someone mentioned a publicity photo of a "all BSB" GN Empire Builder... it rang a bell with me so after wracking my peanut brain for where I'd seen it I remembered a brochure I bought years ago..... and "there it was"................
But this now starts to cause me issues with what the "far more knowledgable" ( and that's an understatement) have said reagding the Lounge-Observations cars at the rear.....
I have scanned and enhanced the shot....

Ok, so from front to back we have...........
2 x F45's ( and what the hell were they doing there ?)
Baggage
Dormitory/Baggage
60 seat coach
Dome coach
Ranch Coffee Shoppe car
Dome coach
Dome coach
Great Dome
Lake series Dining car
River series Duplex sleeper
Pass series sleeper
and then.................
Well, it looks like a 6-4-1 Lounge Obsrvation car - al la Coulee series......... at least to me....
Here's a close up and enhancement...........to the best of my ability...........

Clearly the last car seems to be the "last car" behind the hill cut.... is so, is it a BSB lounge - observation car, and if so, which one.............? Or is it another "Pass" sleeper..........I don't know !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! >

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Help........!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1 :

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