These are 10oz, 'return for refund' bottles. Prior to 1991 the Dr Pepper 'slant' logo was used together
with the oval 'spot'. In 1991 the oval spot was dropped leaving just the slant lettering.
The 1995 bottle on the left is clear glass and has the Dublin Dr.Pepper cap shown above. The bottle on
the right is green glass, 1991, partly filled with genuine Dr Pepper to show the lettering.