“…The state of affairs for all possible parameters on up to 1300 vertices is tracked by Brouwer on his web site [5]. It can be seen that on up to 100 vertices there are essentially 15 parameters whose classification is still open, the smallest three being (65,32,15,16), (69,20,7,5), and (75,32,10,16). We found the parameters of the last one the most intriguing since the existence of the SRG with (75, 32, 10, 16) is connected to the existence of certain so called two-graphs, and referred in [8, pp.…”