This is the chunky sized Petzold's - an oval bitters with numerous label panels set within bold horizontal ribs/logs.

Dr. Petzold's Genuine German Bitters - Large Size Variant

Embossed	(shoulder) PATENTED 1884 / Dr. PETZOLD'S / GENUINE / GERMAN / BITTERS / INCPT. 1862
Color	orange amber
Height	10 1/2"
Top	applied taper with neck band
Base	smooth, cross seam post mold
Structural Condition	perfect structurally with no chips, cracks or bruises. Mentioned for accuracy is a small 1/4" onion skin surface bubble on one of the ribs on the reverse that is partly open.
Surface Condition	a dug bottle that was only rinsed out - it has some patchy stain and areas of swirl etch type wear. Would polish clean fine if desired.

Reference No: GS44	Reserve It
Price: $210	Payment Info

The following pics show this bottle (the larger size) compared to other bitters