Here's a is based seller with some at $4
Images don't look bad at a glance. Different manufacture dates etc.
Operation Amplifiers (Op Amp). AD548 Precision Low Power BiFET Op Amp. ABA3100 Balanced Low Noise Linear Amplifier. AD822 Low Power FET-Input Op Amp. CA324 Quad Op Amp (Harris). CA3130 15MHz BiMOS Op Amp.
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