In working on my UPU check lists, I find that Paraguay issued 7 stamps in 1984 that picture horse drawn coaches on them, 10g, 15g, 20g, 25g, 30g, 50g, 75g, each issue is overprinted with the AUSIPEX 84 emblem. I'm not able to find these issues in the 2012 Scott catalog. I'm currently using the postbeeld.com topical listing to find these issues.
Thank you in advance for your time & trouble
Robbin