SNECMA M53: looking for cutaways, plans, etc...

msxyz

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Does anybody have so good, high quality cutaway drawings or schematics of this turbofan? I've a promotional brochure from SNECMA of the M53-P2 printed around 30-35 years ago but there is only one small drawing. It's an interesting engine, possibly the sole single shaft turbofan I know of that wasn't an experimental design.

Aside from simplicity, what would be the reason for such a design choice? It's obviously less efficient than having a second shaft for the low pressure stage and, on top of that, the M53 doesn't weight much less compared to other engines of comparable performance and of the same era.
 
There was beautiful poster on the wall at university showing an airflow diagram of the M53 (sealing airflows, turbine cooling air, bleed air - the lot!) like GE likes to do of its engines. Never found an electronic version online, regrettably. I do have this:
 

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