UDR

UDR is an error seen on some Pez stems. It is an abbreviation for "Upside-Down R."

Error Information

Based on

The "registered" symbol (R in a circle) that can be found after the word PEZ on the side of the stem where the letters read from bottom to top. It is presumed to be an error with the mold that produced the stems.

Variations

The UDR can be considered itself a variation of the "registered" symbol.

Years Produced

Approximately from 1990 to 2008.

Feet

UDR only appears on dispensers with regular (not thin) feet.

Patents & Countries

The UDR error can only be found on dispensers made in Slovenia, with a 4.9 or 5.9 patent.

Stems

It is possible to find UDR on all stem colors.