Name this Tulip please
 

Does any one know the name of the tulip pictured at the link below? My
parents were given 6 bulbs about 35 years ago by a distant relative who
farmed tulips in the Vale of York. They are left in the ground all year and
each bulb produces offspring every year so they do need occasional thinning
out.These pictures were taken in this mornings sunshine.

http://uk.geocities.com/gardeningfor...my_garden.html

Thank you
Stephen