Vintage, clear glass bottle "The Burckard Blacking & Oil Co" Baltimore, MD USA.

Description

This is an antique (?) clear glass bottle embossed on the front with "The Burckard Blacking & Oil Co, Baltimore MD USA".  It is an empty, square bottle with a cork stopper.  Within the bottle is the applicator brush attached to a wire stem.  I did not remove the brush from the bottle, but would guess the stem is pretty rusty by now.  There is nothing embossed on the other 3 sides or the bottom of the bottle.  There are small cracks present in the neck area of the bottle, just below the lip.  The bottle measures 4-3/4" high x 1-5/8" square.  There is residue inside the bottle and the bottle is intact despite the cracks.
It's always fun opening a new box of stuff that Dad had collected over the years.  This box was marked "medicine bottles" and "medical supplies"....   I know this one is not a medicine bottle, but it was in the box...
I have tried to describe any issues with this item as much as possible.  I can post additional photos upon request and will try to answer any questions you might have that weren't addressed above.  If you want to purchase more than one item, let me know and I will wait until your purchases are complete, then I will send a single invoice with one shipping charge