There are no dumb questions...

[Gary R Katz]

I've been racking my brain trying to remember the name of the decorative designs cut inside a piece of wood. Must be my age. The design is commonly found in Arts & Crafts pieces and they are usually symmetrical. I assume the wood is cut in half, each half is "mirror imaged" and the design is cut in both pieces at the same time with a band, scroll, or sabre saw. The pieces are then glued back together.
What's the name of this technique, and is this the way to cut the design?
Thanks!

[glenn bradley]

Fretwork? (https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwimm7DJnPDbAhXhzVkKHTtuDXcQjRx6BAgBEAU&url=http%3A%2F%2Flumberjocks.com%2Fprojects%2F2949 0&psig=AOvVaw3LP-CnCUVsQxfi9B_LDnH5&ust=1530064482542330)
. . . . . . . .

[Wallace Brooks]

Bookmatching

[Bill Dufour]

Intarsia?
Bill D.

[Brian W Evans]

Boulle marquetry? (https://www.finewoodworking.com/2008/01/01/boulle-marquetry-demonstration-with-silas-kopf)

[Bill Dufour]

Does this leave a piece with holes clear through that allow air to pass or is it a solid panel with no vent holes?
Bil lD.

[Gary R Katz]

Glenn Bradley, that's what it's called. Thank you for setting me straight!