Currently when looking at bulk lots of Roo mixtures I set my buying price at around 50 cents per stamp. I occasionally adjust for quality and content. Because of the availability of plating material 1d,2d and 9d lots often attract more attention.
a full Hagner of about 50 stamps generally attracts around $40-50. I think the most I have paid for a mixed collection of around 50 stamps was $80 but I knew there was a 2d substituted cliche in it!
There are a lot of 1/- Roos in the above collection and I would expect this to lower interest in it.
The real money in used Roos is in varieties.
As a collector I am more interested in the quality of my collection and only place a value when selling. For insurance purposes I have to have a value and for this purpose I set 30% of catalogue value as the standard for my specialised group.The other 500 or so Roos I value at $100.
Without an identified variety in the above lot I would not place a high value on it. It would be best used as a base for starting a collection.
The catalogue values set out by itma should not be used to value this collection. Catalogue values are set on fine used which I doubt you would find here.