Are The Cancels Forgeries?

I had someone tell me these cancels are forgeries. because of the high cat value. Not that he is wrong. Just looking for a second opinion.

The red grid cancels are total forgeries.There was never a combination of the dotted lozenge number cancels and the grid type.The Grid type cancels ended in 1852.Although black grid type cancels can be found on Napoleon 1854 issues;they are scarce.In the country side the black grille cancel was used a few years after the 1852 official ending.Your 2 stamps date from the 1870's & 1854.The red grid type is very rare on the early Ceres stamps…
An example of the red grille on a Ceres stamp:

The grilled lozenge cancel is known in black, red and blue. Are red cancellations rare?

The first stamp, if genuine, is a Bordeaux. Scott #45 is the cheapest of the three types at $20

The second stamp is most likely Scott #15, catalogue $1.50

Prices are from 2014 Classic Specialized.

Are the numeral cancellations rare? From the lists I have the 17 is Aigre which is a small town, the 2738 (?) is Rouen which surely isn't rare.

Thank you perf12, we cross posted so I only just saw your reply.