Need to know some flower sizes.
I had a landsburgia (probably not spelled right) that looks allot like that, but its flower is much smaller than guttulata which also looks like that.
guttulata and cuprea are some of the biggest flowered of the genus. There is a lot of variation in the coloring of guttulata, but its a big flower compared to most other Restrepias.
Should have read closer! 2" is a pretty big flower for the genus, and given the variation in guttulata it could very well be that species Ron
Are the ventral sepals about 1.5-2 cm?