This is from my archive and ancient
Curry Powder is based largely on four spices: coriander, cumin, fenugreek and turmeric
with the possibility of many other ingredients being included.
Coriander Seeds, 8
Cumin Seeds, 8
Fenugreek Seeds, 8
Turmeric, 8
Cloves, 5
Garlic , 5
Curry Leaves, 4
Fennel Seeds, 4
Ginger, 4
Chillies, 3
Mustard, 3
Red Pepper, 3
Salt, 3
Cassia, 2
Black Pepper, 2
Poppy Seeds, 2
Anise, 1
Bengal Gram, 1
Cardamom, 1
Cassia buds, 1
Celery Seed, 1
Cinnamon, 1
Dill Seed, 1
Mace, 1
Nagkeser, 1
Nutmeg, 1
Onion, 1
Trifala, 1
White Pepper, 1
Never been able to find - Cassia buds -Trifala - Nagkeser, but hey!
Bolst Brand is a good one.
The one from the 70s, which is still made, but you can't get in the UK and I'd love to try again.
SHIP BRAND, Green Label MADRAS CURRY POWDER
Coriander Seeds, Turmeric, Chillies, Cumin Seeds, Fenugreek Seeds, Fennel Seeds, Trifala & Nagkeser
(Fragrant Spices), Cloves, Cassia, Garlic, Curry Leaves and Salt
Hope this helps, Chewy