I'm not doing well with your description.
There is a texture brush. It has 3 -4" bristles. When it is brand new,
the bristles are bent out like an old paint brush standing on its
bristles. Thin out compound about like latex paint. Saturate the
bristles in compound. Smack against the wall in a random pattern, keep
reloading. It is very messy - tarp and dress accordingly.
If it was done commercially in the last 30 years it was probably shot on
with a texture gun. It may or may not have been knocked down with a
trowel. You can rent the machine. You just thought the brush was
Keep the whole world singing. . .
(remove the 7)
Click to see the full signature.