https://youtu.be/p8LBr6cZPuY?t=530

At roughly the timestamp above the architect uses an odd looking metal straightedge and I was wondering what it was called. I thought it was a regular architect's scale at first, but two of the fins are small. I can't make out any brand marks and have so far had no luck finding out what it is.

Have any of you seen something similar?

https://youtu.be/p8LBr6cZPuY?t=530

At roughly the timestamp above the architect uses an odd looking metal straightedge and I was wondering what it was called. I thought it was a regular architect's scale at first, but two of the fins are small. I can't make out any brand marks and have so far had no luck finding out what it is.

Have any of you seen something similar?

https://youtu.be/p8LBr6cZPuY?t=530

At roughly the timestamp above the architect uses in odd looking metal straightedge and I was wondering what it was called. I thought it was a regular architect's scale at first, but two of the fins are small. I can't make out any brand marks and have so far had no luck finding out what it is.

Have any of you seen something similar?

https://youtu.be/p8LBr6cZPuY?t=530

At roughly the timestamp above the architect uses an odd looking metal straightedge and I was wondering what it was called. I thought it was a regular architect's scale at first, but two of the fins are small. I can't make out any brand marks and have so far had no luck finding out what it is.

Have any of you seen something similar?