Gantry crane in book 226, page 37

[Andy__]

Anyone know about this crane? As it says above in book 226 page 37, (1981). 

AFAIK it’s a creation from another set. Which one ? 

 

Thanks

[1974]

722 & 733

[briapf]

Hi - 

I am new to the forum - I have been working on building the factory in the idea book 226 p.37.  I am struggling to figure out a few items: 

1. what is between the two structures - I see some gray - can't tell if there's a door.

2. what doors are used on the upper part of the structure - are they 1x3x4 (left and right)

3. on the bottom between the two arches on the far side - is it 1x3 that separate the two? 

any help would be greatly appreciated.

many thanks -